Unit 2: Angle, Lines, & Proofs Vocab Review

Front

What are adjacent angles?

Back

Angles that share a vertex and a side.

Front

What are complementary angles?

Back

Angles that have a sum of 90°.

Front

What are parallel lines?

Back

Lines in the same plane that never intersect.

Front

What are perpendicular lines?

Back

Lines that intersect at a right angle.

Front

What is a POSTULATE in mathematics?

Back

A proposition that has not been proven true but is considered true.

Front

What are vertical angles?

Back

The opposite and congruent angles formed by two intersecting lines.

Front

What is a transversal?

Back

A line that intersects two or more lines in the same plane.

Front

What are supplementary angles?

Back

Angles that have a sum of 180°.

Front

What is a linear pair?

Back

A pair of adjacent angles that are formed when two lines intersect.

Front

What is the definition of a point?

Back

A location in space with no dimensions.